# Trigonometry

posted by
**James**
.

Find the angular speed in radians per sec. of the second hand on a clock.

My answer is

1 rpm

=1*2pi radians/1minute(1 rotation = 2pi radians)

=2pi radians/60seconds

=1/30 radians/seconds

It goes 2PI radians in 60 seconds. What happened to the PI?

I forgot to put sorry.

So the correct was 1/30pi radians/seconds